Precálculo Ejemplos

$\cos (12) \cos (13) - \sin (12) \sin (13)$

Paso 1

Evalúa $\cos (12)$ .

$0.9781476 \cos (13) - \sin (12) \sin (13)$

Paso 2

Evalúa $\cos (13)$ .

$0.9781476 \cdot 0.97437006 - \sin (12) \sin (13)$

Paso 3

Multiplica $0.9781476$ por $0.97437006$ .

$0.95307774 - \sin (12) \sin (13)$

Paso 4

Evalúa $\sin (12)$ .

$0.95307774 - 1 \cdot 0.20791169 \sin (13)$

Paso 5

Multiplica $- 1$ por $0.20791169$ .

$0.95307774 - 0.20791169 \sin (13)$

Paso 6

Evalúa $\sin (13)$ .

$0.95307774 - 0.20791169 \cdot 0.22495105$

Paso 7

Multiplica $- 0.20791169$ por $0.22495105$ .

$0.95307774 - 0.04676995$

Paso 8

Resta $0.04676995$ de $0.95307774$ .

$0.90630778$